Since its inception in 1996, Sigma Science has delivered high quality nuclear surety and safety expertise to DOE, other federal agencies, and prime contractors.

• Honeywell SCMC—Triad National Security at Los Alamos National Laboratory
• NNSA Los Alamos Nuclear Safety Engineering and Technical Support
• DOE EM-LA Nuclear Safety Support Services
• SRNS—Nuclear Safety and Criticality Safety Technical Support Services
• Honeywell SCMC—Consolidated Nuclear Security, Inc., Pantex Plant Nuclear Safety and Fire Protection Engineering Support
• USAF Nuclear Weapons Safety Center—Booz Allen Hamilton Engineering and Nuclear Safety Services
• Honeywell SCMC—National Technology and Engineering Solutions of Sandia, Sandia National Laboratory
• Defense Threat Reduction Agency – Fire Hazards Analysis

Sigma Science has been providing support to DOE and NNSA for major capital construction projects since 2018 including support in the areas of project management and controls, engineering design reviews at DOE O 413.3b Critical Decision Points, quality assurance, risk management, performance review, construction management and oversight, operational readiness, safety and safeguards, and security oversight and assessment.

• NNSA Savannah River Project Management Office Technical Support Services
• NNSA Y-12 Project Management Office Technical Support Services
• SRNS—System Engineering, Program and Project Management, and Capital Project Support Services

Sigma Science supports the DOE Office of Environmental Management (EM) cleanup mission at several sites across the DOE Complex.

• Ground-Based Strategic Deterrent Engineering and Manufacturing Development Program
• AFGSC/A4C—On-Site General Engineering Management and Advisory Support and On-Demand Engineering Design Firm Services for Design Reviews

Sigma Science is recognized as a leading provider of nuclear security and nonproliferation support across the nuclear security enterprise.

• Technical and Engineering Services to NNSA (NA-122) at Sandia National Laboratories and Washington, DC
• Technical and Analytical Support Services for the NNSA (NA-22) Office of Defense Nuclear Nonproliferation Research and Development

Sigma Science supports the advancement of nuclear energy science and technology to meet U.S. energy, environmental, and economic needs.

• DOE Office of Nuclear Energy Nuclear Industry Advisory & Assistance Services Support
• Engineering and Nuclear Safety Support to the Combined Radiation Environments for Survivability Testing Project at Sandia National Laboratories

Sigma Science provides mission support services to DOE, NNSA, and DOD clients.

• NNSA Los Alamos Office of Acquisition and Project Management—Environmental, Safety and Health Assistance
• SRNS—Nuclear Safety and Criticality Safety Technical Support Services
• UT-Battelle—ORNL Technical and Administrative Support
• Honeywell SCMC—Mission Support and Test Services, Nevada National Security Site
• NNSA Los Alamos—Environmental, Safety, and Health Assistance
• Waste Isolation Pilot Plant Technical and Regulatory Services
• Idaho Environmental Coalition – Basic Technical Services Agreement Contract
• Strategic Communications and Administrative Support Services to NNSA (NA-10) in Washington, DC
• NNSA Office of Management and Budget—Executive Secretariat